<?php
// 引入 数据库工具
require_once("DButil.php");

// 查询课程信息
$sql = "";

$arr = [
    "success" => true,
    "msg" => "查询课程信息成功",
    "data" => null
];

header("Access-Control-Allow-Origin:*");
header("Content-Type:application/json;charset=UTF-8");
echo json_encode($arr);
?>